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EP1254889A1pdfexpensive dimethyl carbonate was decomposed when the reaction was carried out in the same manner as in the present invention while using dimethyl carbonate that is known as a quaternizing agent, although a mixture of quater- nary ammonium salts of organic acid was obtained...

Method of preparation of high purity lithium carbonateThen lithium carbonate is precipitated with saturated ammonium carbonate solution, filtered, washed with hot distillated water, ethanol, and dried Method of present invention makes it possible to obtain lithium carbonate containing <0001 mass % (in respect to lithium) of sodium, potassium, and calcium EFFECT: method of improved efficiency 1 ex...

Method for purification of calcium carbonate - Minerals ,Nov 25, 1997· The calcium carbonate product resulting from the process of the present invention has a reduced iron content Calcium carbonate produced according to the method of this invention is particularly suitable for use as food or pharmaceutical additives and may also be useful as a filler in papermaking processes or as additives in plastic products...

United States Patent [19] 5,985,138 - Robert B LaughlinThe preferred alkali metal salts for use in the present invention are sodium and/or potassium bicarbonate and sodium and/or potassium carbonate Since, at present, the sodium salts are less expensive than the potassium salts, preferably sodium bicarbonate and sodium carbonate are used in order to reduce the cost of the extraction process...

mixture of sodium carbonate and calsium chloride? | Yahoo ,Feb 02, 2008· In the process according to the invention, clarification is designed to separate the insoluble materials (particularly the precipitate of heavy metal hydroxides) from the aqueous sodium chloride solution In accordance with the invention, calcium carbonate is coprecipitated with the heavy metal hydroxid...

JP3446760B2 - Manufacturing method of ethylene carbonate ,That is, in the method of the present invention, hazardous substances or explosive can produce ethylene carbonate under mild reaction conditions without using, also were generated from the reaction solution of ethylene carbonate and unreacted ethylene glycol were easily separated since unreacted ethylene glycol can be recycled Te, the present ....

calcium carbonate - Translation into French - examples ,The present invention relates to dewatering of an aqueous slurry of calcium carbonate Cette invention concerne la déshydratation d'une bouillie aqueuse de carbonate de calcium A wellbore servicing fluid comprising a water-based mud, a sized calcium carbonate particle and a wax...

WO2012129628A2 - Process for production of nickel ,The present invention refers to a process for production of nickel carbonate comprising the following steps: a) Preparing a magnesium salt solution; b) Contacting said solution with a stream of gaseous CO 2 , keeping pH between 4 and 10 and temperature between 0 and 100°C, during up to 5 hours; c) Contacting the mixture of step b) with a nickel sulphate solution, producing a mixture; d ....

PRODUCTION PROCESS OF DIALKYL CARBONATE - Patent - ,An object of the present invention is to provide an industrially advantageous process for simultaneously producing a symmetric dialkyl carbonate and an asymmetric dialkyl carbonate by performing a transesterification reaction of an alkylene carbonate with two or more kinds of alcohols and a process ....

Heat pump distillation apparatus and process for diethyl ,The present invention relates to a heat pump distillation device for diethyl carbonate and a technology thereof The device comprises a reaction distillation column, a heavy component distillation column, a light component distillation column, a dimethyl carbonate separation column and a diethyl carbonate rectification column after steam materials at the tops of the five columns are led into a ....

Walter Lee Edwards | Master of Science | Research ,The present invention relates to imide-modified polyester imide resins , preferably selected from the group consisting of surface modified talc and surface-modified calcium carbonate The ....

present invention carbonate - ecole2baseballfrcalcium carbonate - English-French Dictionary - Glosbe en In a direct process, the present invention involves heating calcium carbonate to a temperature greater than its melting point or heating a molten mixture containing calcium carbonate; and subjecting the molten calcium carbonate or molten mixture to electrolysis to generate calcium oxide and oxygen, and a reduced carbon product...

Carbonate patent application classLithium combinations, and uses related thereto - The present invention relates to combinatorial therapies for treating anxiety, depression or psychotic conditions using a lithium salt and a psychoactive drug selected from the group consisting of serotonin reuptake inhibitor, a 5HT: 11-05-2009: 20160083370...

Aragonite Patents - Rex ResearchThe present invention relates to the preparation process of high purity aragonite type calcium carbonate whisker The present invention prepares aragonite type calcium carbonate whisker with lime or slaked lime as main material and magnesium salt as crystal salt controlling agent and through a CO2 carbonating process...

Carbonate fuel cell anodes(Patent) | DOE PatentsThe present invention provides novel compositions that find advantageous use in making electrodes for electrochemical cells and electrochemical devices such as solid oxide fuel cells, electrolyzers, sensors, pumps and the like, the compositions comprising cerium-modified doped strontium titanate...

Carbonated water - WikipediaCarbonated water (also known as soda water, sparkling water or, especially in the US, seltzer or seltzer water) is water containing dissolved carbon dioxide gas, either artificially injected under pressure or occurring due to natural geological process Carbonation causes small bubbles to form, giving the water an effervescent quality Common forms include sparkling natural mineral water ....

WO/2016/062424 METHOD FOR PRODUCING GLYCERIC ACID CARBONATEThe present invention relates to a method for preparing a compound of formula (I), the substituent R3 having a specific meaning, to a mixture and to a corresponding application/use Search International and National Patent Collections: 1 (WO2016062424) METHOD FOR PRODUCING GLYCERIC ACID CARBONATE:...

US 2017/0008916 A1 - Carbonate Prodrugs And Methods Of ,The present invention provides carbonate prodrugs which comprise a carbonic phosphoric anhydride prodrug moiety attached to the hydroxyl or carboxyl group of a parent drug moiety The prodrugs may provide improved physicochemical properties over the parent drug Also provided are methods of treating a disease or condition that is responsive to ....

Alkali-Carbonate-Based Carbon Dioxide Absorbent Containing ,The present invention provides an alkali carbonate-based carbon dioxide absorbent containing an added sterically hindered cyclic amine to improve the rate of carbon dioxide absorption reduce the amount of renewable energy used and prevent the salt production and chemical phase separation...

Tecnalia Sustainable Chemistry - Chemistry - TECNALIA ,The present invention provides a process for separating lignin from a lignocellulosic material in order to obtain cellulose free or substantially free of lignin, the process comprising the steps of (a) preparing a CO2-triggered switchable solvent by mixing water, a water-insoluble amine which is a secondary amine, a tertiary amine, or a ....

Process of making an aqueous calcium carbonate suspension ,Apr 09, 2002· The present invention is to an aqueous antacid suspension for oral use having a pH of about 75 to about 87 of calcium carbonate, prepared by a process which comprises: a) adding to water an effective amount of calcium carbonate with mixing until the calcium carbonate is completely wetted and dispersed; and...

Sodium to sodium carbonate conversion process(Patent ,@article{osti_871189, title = {Sodium to sodium carbonate conversion process}, author = {Herrmann, Steven D}, abstractNote = {A method of converting radioactive alkali metal into a low level disposable solid waste material The radioactive alkali metal is atomized and introduced into an aqueous caustic solution having caustic present in the range of from about 20 wt % to about 70 wt % to ....

Generic Fosrenol Availability - DrugsThe present invention includes an oral pharmaceutical capsule comprising a shell, lanthanum carbonate or lanthanum carbonate hydrate, and a lubricant such as talc, wherein the shell encapsulates the lanthanum carbonate or its hydrate and the lubricant Capsule shells comprise, for example, gelatin...

SURFACE-REACTED CALCIUM CARBONATE FOR USE AS ANTI ,Oct 12, 2017· The present invention relates to the use of a surface-reacted calcium carbonate as anti-caking agent, wherein the surface-reacted calcium carbonate is a reaction product of natural ground or precipitated calcium carbonate with carbon dioxide and at least one acid in an aqueous medium, wherein the carbon dioxide is formed in situ by the acid treatment and/or is supplied from an ,...

Calcium Carbonatelenses, if present and easy to do Continue rinsing P312 - Call a POISON CENTER or doctor/physician if you feel unwell P332+P313 - If skin irritation occurs: Get medical advice/attention P337+P313 - If eye irritation persists: Get medical advice/attention P362+P364 - Take off contaminated clothing and wash it ,...

US20110077292A1 - Forskolin carbonates and uses thereof ,The present invention provides methods for reducing body weight In particular, the present invention provides methods for reducing body weight by administering a composition comprising a forskolin 1α,9α-carbonate compound of the formula: where R 1 is hydrogen or a carbonyl group...

WO2013129486A1 - Method for producing glycerol carbonate ,The present invention addresses the problem of providing a method wherein a basic catalyst or a metal component is not used when a glycerol carbonate acrylate compound is produced by reacting a glycerol carbonate and a vinyl acrylate compound with each other The present invention relates to a method for producing a glycerol carbonate acrylate compound represented by formula (III), which is ....

Ammonium Carbonate Patents and Patent Applications (Class ,Mar 20, 2007· Abstract: The present invention relates to an oral composition comprising, in an orally acceptable carrier, from about 01% to about 5% zinc oxide; and from about 01% to about 5% of a source of carbonate ions selected from alkali metal and ammonium carbonates and bicarbonat The molar ratio of carbonate ion to zinc ion is from about 005:1 to about 1:1...

EPO - T 2017/07 (Hair dye composition/KAO) of 26112009Nov 26, 2009· T 2017/07 (Hair dye composition/KAO) of 26112009 European Case Law Identifier: , glycol diethyl ether and dipropylene glycol diethyl ether in an amount of up to 5 wt % based on the composition of the present invention; , Claim 1 of auxiliary request 1 was amended in order to make clear that propylene carbonate was the sole alkylene ....

US Patent for Surface treated calcium carbonate filler for ,Jan 29, 2010· The surface treated calcium carbonate filler for resins of the present invention deteriorates little with time, has satisfactory dispersibility in resins, and can give a sheet or film which has a satisfactory balance among durability, weatherability, strength, and thermal stability, and is useful as a battery separator or a light reflector...